1) In Yucca the cross-pollination carried out by special moth, Pronuba yuccasella. Fully opened flowers emit perfumes and are visited by the female moth, especially during nights.
2) This moth collects a lot of pollen grains from one flower and visits another flower. Life history of this moth is intimately associated with the pollination mechanism in Yucca

Gloriosa Superba
Family: Liliaceae

1. Dalbergia latifolia (Rose wood).
2. Pterocarpus santalinus (Red sandalwood).

A powerful alkaloid 'atropine' obtained from root of Atropa belladonna is used in belladonna plasters, tinctures etc. for relieving pain and also for dilating pupils of eyes for eye - testing.

1. Molecular taxonomy helps in establishing the relationship of different plant groups at DNA level.
2. It unlocks the treasure chest of information on evolutionary history of organisms.

Different molecular markers like allozymes, mitochondrial DNA, microsatellites, RFLPs (Restriction Fragment Length Polymorphism), AFLPs (Amplified Fragment Length Polymorphism), single nucleotide polymorphism- SNP, microchips or arrays are used in analysis in Molecular Taxonomy

Immunotaxonomy.

ICBN: International Code of Botanical Nomenclature.
Assigning name for a plant is called Nomenclature.
This is based on the rules and recommendations of the ICBN.

1. Plant taxonomy is otherwise known as systematic botany.
2. Classification, identifying, description and naming the plants are the bases of plant taxonomy

Polypetalae: Plants with free petals and dichlamydeous flowers come under polypetalae. It is further divided into three series - (iii) Calyciflorae: It includes plant having flowers with cup shaped thalamus and with inferior or sometimes with half inferior ovary. It includes 5 orders and 27 families.